Quarterly report pursuant to Section 13 or 15(d)

Employee Benefit Plans (Details)

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Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
U.S. Defined Benefit Pension Plans
        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost $ 0 $ 0 $ 0 $ 0
Interest cost 22 24 67 72
Expected return on plan assets (38) (35) (114) (106)
Amortization of prior service cost 0 0 0 0
Amortization of net actuarial (gains) losses 1 1 2 4
Net periodic benefit (income) cost (15) (10) (45) (30)
Non-U.S. Defined Benefit Pension Plans
        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost 10 11 29 31
Interest cost 21 23 62 63
Expected return on plan assets (33) (28) (95) (78)
Amortization of prior service cost 0 0 0 0
Amortization of net actuarial (gains) losses (2) 0 (6) 0
Net periodic benefit (income) cost (4) 6 (10) 16
Estimated future employer contributions in 2012 84   84  
Amount contributed by employer     77  
Postretirement Plans
        
Components of Net Periodic Benefit Cost [Abstract]        
Service cost 1 [1] 1 [2] 3 [1] 3 [2]
Interest cost 3 [1] 4 [2] 11 [1] 11 [2]
Expected return on plan assets 0 [1] 0 [2] 0 [1] 0 [2]
Amortization of prior service cost 2 [1] 1 [2] 4 [1] 3 [2]
Amortization of net actuarial (gains) losses (1) [1] 1 [2] 3 [1] 3 [2]
Net periodic benefit (income) cost 5 [1] 7 [2] 21 [1] 20 [2]
Estimated future employer contributions in 2012 20   20  
Amount contributed by employer     15  
Percentage of the postretirement benefit obligation that relates to the U.S. postretirement plan 96.00% 95.00% 96.00% 95.00%
Nonqualified Pension Plans
        
Components of Net Periodic Benefit Cost [Abstract]        
Estimated future employer contributions in 2012 $ 1   $ 1  
[1] Approximately 96% of the postretirement benefit obligation at September 30, 2012 relates to the U.S. postretirement plan.
[2] Approximately 95% of the postretirement benefit obligation at September 30, 2011 relates to the U.S. postretirement plan.